CN203773095U - Fiber optic rotary joint - Google Patents
Fiber optic rotary joint Download PDFInfo
- Publication number
- CN203773095U CN203773095U CN201420087602.0U CN201420087602U CN203773095U CN 203773095 U CN203773095 U CN 203773095U CN 201420087602 U CN201420087602 U CN 201420087602U CN 203773095 U CN203773095 U CN 203773095U
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- China
- Prior art keywords
- slip ring
- hole
- optical
- prism
- fibre channel
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Abstract
The utility model discloses a fiber optic rotary joint. The fiber optic rotary joint comprises an optic fiber slip ring. A rotor and a stator penetrate through the optic fiber slip ring and are provided with a slip ring through hole. A reversing prism is arranged in the stator, and an incidence slope and an outgoing slope penetrate through the reversing prism and are provided with a prism through hole. A first optic fiber channel is arranged on the portion, outside the outgoing slope of the prism through hole, in the stator; a second optic fiber channel in the rotor is arranged on the place, corresponding to the first optic fiber channel, of the prism through hole, wherein the place where the second optic fiber channel is located is located outside the incidence slope. According to the fiber optic rotary joint, light signal transmission positions in the slip ring are changed, the position of the center axis of the slip ring and the position of the center of the slip ring with the center axis serving as the axis can be used for other signal transmission media, signal transmission achieved through a plurality of transmission media can be completed within limited installing space of the same slip ring, the space utilization ratio is greatly improved, and integrated utilization of all types of medium slip rings can be made possible. The utility model further discloses a signal transmission method.
Description
Technical field
The present invention relates to a kind of signal transmitting apparatus, particularly relate to a kind of slip ring of rotary part signal transmission.
Background technology
In the high-end field of commercial unit, there is the requirement of polynary relative motions such as revolution, rotation more.Wherein rotary body needs the function energy and control signal source, therefore need to be at different energy sources media such as transfer function power supply, weak electric signal, light signal, air pressure, hydraulic pressure, oil pressure between rotary body and the electric component connecting, therefore must use rotation communication apparatus slip ring, be responsible for the electric component that rotary body is communicated with, carries the energy and signal.According to transmission medium, distinguish, slip ring is divided into electric slip ring, fluid slip ring, smooth ring.Slip ring is arranged on the rotation center of equipment conventionally, mainly rotation, consists of with static two large divisions.The rotational structure of rotating part connection device also rotatablely moves thereupon, is called " rotor ", and the energy of the fixed sturcture of stationary part connection device, is called " stator ".Make rotary body in unlimited rotary motion, can also carry out other motion or detect the working condition under rotation status.
According to service condition, be made into various distinctive appearances, mixed transport power supply, light source, fluid pressure source, or use with other electrical equipment is equipped, as: Special-shaped, super large profile, disjunctor gear, sprocket wheel, belt pulley, plug, power supply mixes with light source, power supply mixes with pressure fluid, equipped optical, electrical, sound, temperature sensor, fiber optical transceiver, tensimeter, pneumatic element etc., be combined into a kind of multi-functional electricity piece assembly, to reach the specific (special) requirements of saving space, simplified design structure.
Most fiber spinning joints (fiber spinning coupling arrangement) is coaxial rotary joint now, the rotary coupler part in coaxial type fiber spinning joint is positioned at center, the feature of such devices is that the optical axis of optical device overlaps with interconnect devices central shaft, this structure can guarantee that connector has simple light path, for making rotary joint, provides easier method.
But in Dynamic Signal transmitting procedure, sometimes follow the transmission of the media such as gas, oil and water, as followed the transmission of gases at high pressure in some Radar Signal Transmission process, these media need a transmission channel, and this passage is through being normally placed in the position of central shaft; Sometimes in the part of the central shaft of rotary joint, need to place the devices such as roller bearing, turning barrel, or even human body, its objective is and stretch, roll or the operation such as scanning.Because central shaft is taken by other media or device, light signal can not transmit along the optical axis overlapping with rotary joint central shaft, and the transmission line of most of rotary joint all occupies rotary joint central shaft or near zone, cause this type of fiber spinning joint can not meet the application of above-mentioned occasion.
Summary of the invention
The object of this invention is to provide a kind of fiber spinning coupling arrangement, solve fiber spinning coupling arrangement and can only utilize slip ring central shaft position to transmit light signal, other signal transmission mediums cannot carry out with light signal the technical matters of polymorphic type signal transmission on same slip ring.
Fiber spinning coupling arrangement of the present invention, comprise optical fiber slip ring, the rotor and the stator that run through optical fiber slip ring offer a slip ring through hole, a Dove prism is set in stator, the incident inclined-plane and the outgoing inclined-plane that run through Dove prism offer prism through hole, in stator, outside, outgoing inclined-plane at prism through hole, the first optical-fibre channel is set, in rotor, outside, incident inclined-plane at prism through hole arranges the second optical-fibre channel with the first corresponding position of optical-fibre channel, and the end of described the first optical-fibre channel and the second optical-fibre channel is connected respectively optical fiber collimator.
The axis of described slip ring through hole and the dead in line of optical fiber slip ring, Dove prism incident inclined-plane is parallel with the axis of slip ring through hole with the rotary main shaft on outgoing inclined-plane, the axis of prism through hole and the dead in line of optical fiber slip ring, the internal diameter of prism through hole is identical with the internal diameter of slip ring through hole, the dead in line of the first optical-fibre channel and the second optical-fibre channel.
Fiber spinning coupling arrangement of the present invention, comprise optical fiber slip ring, the rotor and the stator that run through optical fiber slip ring offer a slip ring through hole, a Dove prism is set in stator, described Dove prism is arranged on the outside of slip ring through hole hole wall, in stator, outside, outgoing inclined-plane at prism through hole, the first optical-fibre channel is set, in rotor, outside, incident inclined-plane at prism through hole arranges the second optical-fibre channel with the first corresponding position of optical-fibre channel, and the end of described the first optical-fibre channel and the second optical-fibre channel is connected respectively optical fiber collimator.
Dove prism incident inclined-plane is parallel with the axis of slip ring through hole with the rotary main shaft on outgoing inclined-plane, the dead in line of the first optical-fibre channel and the second optical-fibre channel.
Fiber spinning coupling arrangement of the present invention, comprise optical fiber slip ring, the rotor and the stator that run through optical fiber slip ring offer a slip ring through hole, a Dove prism is set in stator, described Dove prism is a right cylinder, cylindrical center offers prism through hole, and cylindrical upper surface and lower surface tilt to cylindrical center of gravity, cylinder axis cross section of living in be shaped as axisymmetric two isosceles trapezoids; In stator, outside, outgoing inclined-plane at prism through hole, the first optical-fibre channel is set, in rotor, outside, incident inclined-plane at prism through hole arranges the second optical-fibre channel with the first corresponding position of optical-fibre channel, and the end of described the first optical-fibre channel and the second optical-fibre channel is connected respectively optical fiber collimator.
The axis of described slip ring through hole and the dead in line of optical fiber slip ring, Dove prism incident inclined-plane is parallel with the axis of slip ring through hole with the rotary main shaft on outgoing inclined-plane, the axis of prism through hole and the dead in line of optical fiber slip ring, the internal diameter of prism through hole is identical with the internal diameter of slip ring through hole, the dead in line of the first optical-fibre channel and the second optical-fibre channel.
Fiber spinning coupling arrangement of the present invention, changed the transmission location of light signal in slip ring, make slip ring central shaft position, and take the slip ring center that central shaft is axis can be for other signal transmission mediums, make to complete the signal transmission of multiple transmission medium in the limited installing space of same slip ring, greatly improve space utilization efficiency, made various medium slip rings have the possibility of integrated utilization.The application of columniform hollow Dove prism, utilizes solid of revolution to replace habitual Dove prism structure, greatly reduces the difficulty of processing of optical device in slip ring.
Method for transmitting signals of the present invention can be maximum the effectiveness of the above-mentioned slip ring of raising, for optical signal transmission and other signal transmission mediums provide routing solution more flexibly.
Below in conjunction with accompanying drawing, embodiments of the invention are described further.
Accompanying drawing explanation
Fig. 1 is the structural representation () of fiber spinning coupling arrangement of the present invention;
Fig. 2 is the structural representation (two) of fiber spinning coupling arrangement of the present invention;
Fig. 3 is a kind of structure of Dove prism in fiber spinning coupling arrangement of the present invention.
Embodiment
As depicted in figs. 1 and 2, on optical fiber slip ring in the present embodiment, run through rotor 01 and stator 02 and offer a slip ring through hole 03, the axis of slip ring through hole 03 and the dead in line of optical fiber slip ring, a Dove prism 04 is set in stator 02, Dove prism 04 incident inclined-plane is parallel with the axis of slip ring through hole 03 with the rotary main shaft on outgoing inclined-plane, the incident inclined-plane and the outgoing inclined-plane that run through Dove prism 04 offer prism through hole 05, the axis of prism through hole 05 and the dead in line of optical fiber slip ring, the internal diameter of prism through hole 05 is identical with the internal diameter of slip ring through hole 03.
In stator 02, outside, outgoing inclined-plane at prism through hole 05, the first optical-fibre channel 06 is set, in rotor 01, the dead in line that the second optical-fibre channel 07, the first optical-fibre channel 06 and the second optical-fibre channel 07 is set in outside, incident inclined-plane and the first corresponding position of optical-fibre channel 06 of prism through hole 05.
The end of the first optical-fibre channel 06 and the second optical-fibre channel 07 can be connected respectively optical fiber collimator.
The present embodiment utilizes the total reflection characteristic of Dove prism 04 to change the transmission path of light signal, make the transmission of light signal can avoid slip ring through hole 03 region of optical fiber slip ring, when guaranteeing optical signal transmission quality, other signal transmission mediums and transmission structure are kept in this region, realized the diversity of signal transmission in single optical fiber slip ring.
Utilize optical fiber collimator can guarantee that when input optical signal arrives Dove prism 04 incident inclined-plane be directional light, the directional light of Dove prism 04 outgoing inclined-plane output can be coupled into optical-fibre channel, and then making concentration of energy in the transmitting procedure of well lighted, attenuation is less.
On above-described embodiment basis, Dove prism 04 can be arranged on the outside of slip ring through hole 03 hole wall, avoids offering prism through hole 05 and reduce difficulty of processing on Dove prism 04.Under flat box slip ring shape for example, can a plurality of Dove prisms 04 and corresponding optical-fibre channel be set around slip ring through hole 03 hole wall like this, improve optical signal transmission efficiency, optimized transmission path.
The method of utilizing optical fiber slip ring to carry out signal transmission comprises the following steps:
S1 runs through rotor 01 and stator 02 and offers a slip ring through hole 03 with optical fiber slip ring central axes on optical fiber slip ring;
S2, the incident inclined-plane Dove prism 04 parallel with the axis of slip ring through hole 03 with the rotary main shaft on outgoing inclined-plane is set in stator 02, runs through the incident inclined-plane of Dove prism 04 and outgoing inclined-plane and offer the prism through hole 05 with slip ring through hole 03 same apertures and axis;
S3, the relevant position in the incident inclined-plane of Dove prism 04 and the outside on outgoing inclined-plane is provided with an optical-fibre channel in stator 02, is provided with another optical-fibre channel in rotor 01;
S4, connects optical fiber collimator at each optical-fibre channel end.
S5, rotated by rotation or the cycle of rotor, and light signal periodically transmits by Dove prism 04;
S6, other signal transmission mediums are by slip ring through hole 03 signal transmission.
Utilize this method the central axis region allocation of optical fiber slip ring can be given to other signal transmission mediums and transmission structure.
For step s2, can replace with following steps:
The incident inclined-plane Dove prism 04 parallel with the axis of slip ring through hole 03 with the rotary main shaft on outgoing inclined-plane is set in stator 02, and Dove prism 04 is looped around the hole wall outside of slip ring through hole 03.Such prism setting can adapt to specific slip ring shape, for example flat box-like.
As shown in Figure 3, for the Dove prism 04 in step s2, it can be a right cylinder, cylindrical center offers prism through hole 05, and cylindrical upper surface and lower surface tilt to cylindrical center of gravity, cylinder axis cross section of living in be shaped as axisymmetric two isosceles trapezoids; In stator 02, outside, outgoing inclined-plane at prism through hole 05, the first optical-fibre channel 06 is set, in rotor 01, outside, incident inclined-plane at prism through hole 05 arranges the second optical-fibre channel 07 with the first corresponding position of optical-fibre channel 06, and the end of described the first optical-fibre channel 06 and the second optical-fibre channel 07 is connected respectively optical fiber collimator.The axis of slip ring through hole 03 and the dead in line of optical fiber slip ring, Dove prism 04 incident inclined-plane is parallel with the axis of slip ring through hole 03 with the rotary main shaft on outgoing inclined-plane, the axis of prism through hole 05 and the dead in line of optical fiber slip ring, the internal diameter of prism through hole 05 is identical with the internal diameter of slip ring through hole 03, the dead in line of the first optical-fibre channel 06 and the second optical-fibre channel 07.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (6)
1. a fiber spinning coupling arrangement, comprise optical fiber slip ring, it is characterized in that: the rotor (01) and the stator (02) that run through optical fiber slip ring offer a slip ring through hole (03), a Dove prism (04) is set in stator (02), the incident inclined-plane and the outgoing inclined-plane that run through Dove prism (04) offer prism through hole (05), in stator (02), outside, outgoing inclined-plane at prism through hole (05), the first optical-fibre channel (06) is set, in rotor (01), outside, incident inclined-plane at prism through hole (05) arranges the second optical-fibre channel (07) with the corresponding position of the first optical-fibre channel (06), described the first optical-fibre channel (06) is connected respectively optical fiber collimator with the end of the second optical-fibre channel (07).
2. fiber spinning coupling arrangement according to claim 1, it is characterized in that: the axis of described slip ring through hole (03) and the dead in line of optical fiber slip ring, Dove prism (04) incident inclined-plane is parallel with the axis of slip ring through hole (03) with the rotary main shaft on outgoing inclined-plane, the axis of prism through hole (05) and the dead in line of optical fiber slip ring, the internal diameter of prism through hole (05) is identical with the internal diameter of slip ring through hole (03), the dead in line of the first optical-fibre channel (06) and the second optical-fibre channel (07).
3. a fiber spinning coupling arrangement, comprise optical fiber slip ring, it is characterized in that: the rotor (01) and the stator (02) that run through optical fiber slip ring offer a slip ring through hole (03), a Dove prism (04) is set in stator (02), described Dove prism (04) is arranged on the outside of slip ring through hole (03) hole wall, in stator (02), outside, outgoing inclined-plane at prism through hole (05), the first optical-fibre channel (06) is set, in rotor (01), outside, incident inclined-plane at prism through hole (05) arranges the second optical-fibre channel (07) with the corresponding position of the first optical-fibre channel (06), described the first optical-fibre channel (06) is connected respectively optical fiber collimator with the end of the second optical-fibre channel (07).
4. fiber spinning coupling arrangement according to claim 3, it is characterized in that: Dove prism (04) incident inclined-plane is parallel with the axis of slip ring through hole (03) with the rotary main shaft on outgoing inclined-plane the dead in line of the first optical-fibre channel (06) and the second optical-fibre channel (07).
5. a fiber spinning coupling arrangement, comprise optical fiber slip ring, it is characterized in that: the rotor (01) and the stator (02) that run through optical fiber slip ring offer a slip ring through hole (03), a Dove prism (04) is set in stator (02), described Dove prism (04) is a right cylinder, cylindrical center offers prism through hole (05), and cylindrical upper surface and lower surface tilt to cylindrical center of gravity, cylinder axis cross section of living in be shaped as axisymmetric two isosceles trapezoids; In stator (02), outside, outgoing inclined-plane at prism through hole (05), the first optical-fibre channel (06) is set, in rotor (01), outside, incident inclined-plane at prism through hole (05) arranges the second optical-fibre channel (07) with the corresponding position of the first optical-fibre channel (06), and described the first optical-fibre channel (06) is connected respectively optical fiber collimator with the end of the second optical-fibre channel (07).
6. fiber spinning coupling arrangement according to claim 5, it is characterized in that: the axis of described slip ring through hole (03) and the dead in line of optical fiber slip ring, Dove prism (04) incident inclined-plane is parallel with the axis of slip ring through hole (03) with the rotary main shaft on outgoing inclined-plane, the axis of prism through hole (05) and the dead in line of optical fiber slip ring, the internal diameter of prism through hole (05) is identical with the internal diameter of slip ring through hole (03), the dead in line of the first optical-fibre channel (06) and the second optical-fibre channel (07).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087602.0U CN203773095U (en) | 2014-02-27 | 2014-02-27 | Fiber optic rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087602.0U CN203773095U (en) | 2014-02-27 | 2014-02-27 | Fiber optic rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773095U true CN203773095U (en) | 2014-08-13 |
Family
ID=51290270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420087602.0U Expired - Fee Related CN203773095U (en) | 2014-02-27 | 2014-02-27 | Fiber optic rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808294A (en) * | 2015-04-28 | 2015-07-29 | 上海大学 | Wide-angle rotation optical fiber device |
-
2014
- 2014-02-27 CN CN201420087602.0U patent/CN203773095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104808294A (en) * | 2015-04-28 | 2015-07-29 | 上海大学 | Wide-angle rotation optical fiber device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20160227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |